1, infrared emitter
Wrapping the resistive wire in the porcelain rod, the resistive wire after power generation, heat production, so that the cover in the resistive wire outside the carbon rod temperature (generally not more than 500 ℃), the emission of long-wave infrared radiation is mainly.
Infrared radiators have standing and portable two kinds. Standing infrared emitter power up to 600 ~ 1000 watts or more.
In recent years, some areas of China made far-infrared radiators for medical use, such as high silica as a component, made of far-infrared radiators.
2, incandescent
Widely used in a variety of different power incandescent bulbs as infrared light source. The tungsten filament inside the bulb can reach a temperature of 2000 ~ 2500 ℃ after energized.
Incandescent lamps used in phototherapy in the following forms:
Standing incandescent lamps: with a power of 250 ~ 1000W incandescent bulbs, in the reflector installed between a metal mesh, for protection. Standing incandescent lamps, usually called sun lamps.
Portable incandescent lamp: with less power (mostly 200W or less) incandescent bulbs, installed in a small reflector, reflector fixed in a small bracket.
3, light bath device
Can be divided into two kinds of local or whole body irradiation. According to the different sizes of the light bath box, installed in the box 40 ~ 60W bulb 6 ~ 30. Light bath box is semicircular, the fixed bulb part of the box can add a small metal reflector. Whole body light bath box should be attached to the thermometer, in order to observe the temperature inside the box, adjusted at any time.
Extended information
Infrared wavelengths are longer, (radio, microwave, infrared, visible light.) The wavelengths of infrared light are in order from longest to shortest. The wavelengths are in order from longest to shortest), which gives the feeling of heat and produces the effect of heat.
If infrared light can penetrate to the inside of atoms and molecules, then it will cause the expansion of atoms and molecules and lead to the disintegration of atoms and molecules. In fact, the infrared frequency is low, not enough energy, far from the effect of atoms, molecules disintegration.
So, infrared light can only penetrate the gap in the atomic molecules, but can not penetrate to the atoms, molecules, because infrared light can only penetrate to the atoms, molecules, will make the atoms, molecules, vibration acceleration, spacing, that is, to increase the energy of the thermal movement from the macroscopic point of view, the material in the melt, in the boiling, in the vaporization, but the essence of the material (the atoms, the molecules themselves) has not been changed!
So you can use infrared this excitation mechanism to grill food, so that the organic polymer denaturation, but can not use infrared light to produce the photoelectric effect, not to mention the nucleus of the atom inside the change.
For the same reason, radio waves can not be used to grill food, the wavelength of radio waves is too long to penetrate into the organic polymer gap, not to mention its denaturation to achieve the purpose of the food grilled.
Baidu Encyclopedia - Infrared Light